In-Hull Dual Spectrum CHIRP Transducer supports Dual Spectrum CHIRP 2D Sonar with high frequency beam and wide cone angle, offering CHIRP range of 150-220kHz and max depth of 1200 ft. Intended for glue-in installation inside single layer fiberglass hulls. Includes built-in temperature sensor, epoxy kit and 15' cable. Compatible with: HELIX 5 CHIRP G2 - GPS-equipped models only, HELIX 7 CHIRP G2/G3 - GPS-equipped and CHIRP DI G2 models, HELIX 7 CHIRP G2N/G3N - All models, HELIX 8 CHIRP G3N, HELIX 8 CHIRP G4N - All models, HELIX 9 CHIRP G2N/G3N/G4N - All models, HELIX 10 CHIRP G2N/G3N/G4N - All models, HELIX 12 CHIRP G2N/G3N/G4N - All models, ICE HELIX CHIRP G2 and newer - All models (in Open Water Mode) Side Imaging and Down Imaging units can support this transducer as a 2D sonar only transducer.